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import collections
import operator
import sys
import pytest
import pandas as pd
import pandas._testing as tm
from pandas.tests.extension import base
from pandas.tests.extension.json.array import (
JSONArray,
JSONDtype,
make_data,
)
@pytest.fixture
def dtype():
return JSONDtype()
@pytest.fixture
def data():
"""Length-100 PeriodArray for semantics test."""
data = make_data()
# Why the while loop? NumPy is unable to construct an ndarray from
# equal-length ndarrays. Many of our operations involve coercing the
# EA to an ndarray of objects. To avoid random test failures, we ensure
# that our data is coercible to an ndarray. Several tests deal with only
# the first two elements, so that's what we'll check.
while len(data[0]) == len(data[1]):
data = make_data()
return JSONArray(data)
@pytest.fixture
def data_missing():
"""Length 2 array with [NA, Valid]"""
return JSONArray([{}, {"a": 10}])
@pytest.fixture
def data_for_sorting():
return JSONArray([{"b": 1}, {"c": 4}, {"a": 2, "c": 3}])
@pytest.fixture
def data_missing_for_sorting():
return JSONArray([{"b": 1}, {}, {"a": 4}])
@pytest.fixture
def na_cmp():
return operator.eq
@pytest.fixture
def data_for_grouping():
return JSONArray(
[
{"b": 1},
{"b": 1},
{},
{},
{"a": 0, "c": 2},
{"a": 0, "c": 2},
{"b": 1},
{"c": 2},
]
)
class BaseJSON:
pass
class TestDtype(BaseJSON, base.BaseDtypeTests):
pass
class TestInterface(BaseJSON, base.BaseInterfaceTests):
@pytest.mark.xfail(
reason="comparison method not implemented for JSONArray (GH-37867)"
)
def test_contains(self, data):
# GH-37867
super().test_contains(data)
class TestConstructors(BaseJSON, base.BaseConstructorsTests):
@pytest.mark.xfail(reason="not implemented constructor from dtype")
def test_from_dtype(self, data):
# construct from our dtype & string dtype
super().test_from_dtype(data)
@pytest.mark.xfail(reason="RecursionError, GH-33900")
def test_series_constructor_no_data_with_index(self, dtype, na_value):
# RecursionError: maximum recursion depth exceeded in comparison
rec_limit = sys.getrecursionlimit()
try:
# Limit to avoid stack overflow on Windows CI
sys.setrecursionlimit(100)
super().test_series_constructor_no_data_with_index(dtype, na_value)
finally:
sys.setrecursionlimit(rec_limit)
@pytest.mark.xfail(reason="RecursionError, GH-33900")
def test_series_constructor_scalar_na_with_index(self, dtype, na_value):
# RecursionError: maximum recursion depth exceeded in comparison
rec_limit = sys.getrecursionlimit()
try:
# Limit to avoid stack overflow on Windows CI
sys.setrecursionlimit(100)
super().test_series_constructor_scalar_na_with_index(dtype, na_value)
finally:
sys.setrecursionlimit(rec_limit)
@pytest.mark.xfail(reason="collection as scalar, GH-33901")
def test_series_constructor_scalar_with_index(self, data, dtype):
# TypeError: All values must be of type <class 'collections.abc.Mapping'>
rec_limit = sys.getrecursionlimit()
try:
# Limit to avoid stack overflow on Windows CI
sys.setrecursionlimit(100)
super().test_series_constructor_scalar_with_index(data, dtype)
finally:
sys.setrecursionlimit(rec_limit)
class TestReshaping(BaseJSON, base.BaseReshapingTests):
@pytest.mark.xfail(reason="Different definitions of NA")
def test_stack(self):
"""
The test does .astype(object).stack(future_stack=True). If we happen to have
any missing values in `data`, then we'll end up with different
rows since we consider `{}` NA, but `.astype(object)` doesn't.
"""
super().test_stack()
@pytest.mark.xfail(reason="dict for NA")
def test_unstack(self, data, index):
# The base test has NaN for the expected NA value.
# this matches otherwise
return super().test_unstack(data, index)
class TestGetitem(BaseJSON, base.BaseGetitemTests):
pass
class TestIndex(BaseJSON, base.BaseIndexTests):
pass
class TestMissing(BaseJSON, base.BaseMissingTests):
@pytest.mark.xfail(reason="Setting a dict as a scalar")
def test_fillna_series(self):
"""We treat dictionaries as a mapping in fillna, not a scalar."""
super().test_fillna_series()
@pytest.mark.xfail(reason="Setting a dict as a scalar")
def test_fillna_frame(self):
"""We treat dictionaries as a mapping in fillna, not a scalar."""
super().test_fillna_frame()
unhashable = pytest.mark.xfail(reason="Unhashable")
class TestReduce(base.BaseReduceTests):
pass
class TestMethods(BaseJSON, base.BaseMethodsTests):
@unhashable
def test_value_counts(self, all_data, dropna):
super().test_value_counts(all_data, dropna)
@unhashable
def test_value_counts_with_normalize(self, data):
super().test_value_counts_with_normalize(data)
@unhashable
def test_sort_values_frame(self):
# TODO (EA.factorize): see if _values_for_factorize allows this.
super().test_sort_values_frame()
@pytest.mark.parametrize("ascending", [True, False])
def test_sort_values(self, data_for_sorting, ascending, sort_by_key):
super().test_sort_values(data_for_sorting, ascending, sort_by_key)
@pytest.mark.parametrize("ascending", [True, False])
def test_sort_values_missing(
self, data_missing_for_sorting, ascending, sort_by_key
):
super().test_sort_values_missing(
data_missing_for_sorting, ascending, sort_by_key
)
@pytest.mark.xfail(reason="combine for JSONArray not supported")
def test_combine_le(self, data_repeated):
super().test_combine_le(data_repeated)
@pytest.mark.xfail(
reason="combine for JSONArray not supported - "
"may pass depending on random data",
strict=False,
raises=AssertionError,
)
def test_combine_first(self, data):
super().test_combine_first(data)
@pytest.mark.xfail(reason="broadcasting error")
def test_where_series(self, data, na_value):
# Fails with
# *** ValueError: operands could not be broadcast together
# with shapes (4,) (4,) (0,)
super().test_where_series(data, na_value)
@pytest.mark.xfail(reason="Can't compare dicts.")
def test_searchsorted(self, data_for_sorting):
super().test_searchsorted(data_for_sorting)
@pytest.mark.xfail(reason="Can't compare dicts.")
def test_equals(self, data, na_value, as_series):
super().test_equals(data, na_value, as_series)
@pytest.mark.skip("fill-value is interpreted as a dict of values")
def test_fillna_copy_frame(self, data_missing):
super().test_fillna_copy_frame(data_missing)
def test_equals_same_data_different_object(
self, data, using_copy_on_write, request
):
if using_copy_on_write:
mark = pytest.mark.xfail(reason="Fails with CoW")
request.node.add_marker(mark)
super().test_equals_same_data_different_object(data)
class TestCasting(BaseJSON, base.BaseCastingTests):
@pytest.mark.xfail(reason="failing on np.array(self, dtype=str)")
def test_astype_str(self):
"""This currently fails in NumPy on np.array(self, dtype=str) with
*** ValueError: setting an array element with a sequence
"""
super().test_astype_str()
# We intentionally don't run base.BaseSetitemTests because pandas'
# internals has trouble setting sequences of values into scalar positions.
class TestGroupby(BaseJSON, base.BaseGroupbyTests):
@unhashable
def test_groupby_extension_transform(self):
"""
This currently fails in Series.name.setter, since the
name must be hashable, but the value is a dictionary.
I think this is what we want, i.e. `.name` should be the original
values, and not the values for factorization.
"""
super().test_groupby_extension_transform()
@unhashable
def test_groupby_extension_apply(self):
"""
This fails in Index._do_unique_check with
> hash(val)
E TypeError: unhashable type: 'UserDict' with
I suspect that once we support Index[ExtensionArray],
we'll be able to dispatch unique.
"""
super().test_groupby_extension_apply()
@unhashable
def test_groupby_extension_agg(self):
"""
This fails when we get to tm.assert_series_equal when left.index
contains dictionaries, which are not hashable.
"""
super().test_groupby_extension_agg()
@unhashable
def test_groupby_extension_no_sort(self):
"""
This fails when we get to tm.assert_series_equal when left.index
contains dictionaries, which are not hashable.
"""
super().test_groupby_extension_no_sort()
class TestArithmeticOps(BaseJSON, base.BaseArithmeticOpsTests):
def test_arith_frame_with_scalar(self, data, all_arithmetic_operators, request):
if len(data[0]) != 1:
mark = pytest.mark.xfail(reason="raises in coercing to Series")
request.node.add_marker(mark)
super().test_arith_frame_with_scalar(data, all_arithmetic_operators)
class TestComparisonOps(BaseJSON, base.BaseComparisonOpsTests):
def test_compare_array(self, data, comparison_op, request):
if comparison_op.__name__ in ["eq", "ne"]:
mark = pytest.mark.xfail(reason="Comparison methods not implemented")
request.node.add_marker(mark)
super().test_compare_array(data, comparison_op)
class TestPrinting(BaseJSON, base.BasePrintingTests):
pass
def custom_assert_series_equal(left, right, *args, **kwargs):
# NumPy doesn't handle an array of equal-length UserDicts.
# The default assert_series_equal eventually does a
# Series.values, which raises. We work around it by
# converting the UserDicts to dicts.
if left.dtype.name == "json":
assert left.dtype == right.dtype
left = pd.Series(
JSONArray(left.values.astype(object)), index=left.index, name=left.name
)
right = pd.Series(
JSONArray(right.values.astype(object)),
index=right.index,
name=right.name,
)
tm.assert_series_equal(left, right, *args, **kwargs)
def custom_assert_frame_equal(left, right, *args, **kwargs):
obj_type = kwargs.get("obj", "DataFrame")
tm.assert_index_equal(
left.columns,
right.columns,
exact=kwargs.get("check_column_type", "equiv"),
check_names=kwargs.get("check_names", True),
check_exact=kwargs.get("check_exact", False),
check_categorical=kwargs.get("check_categorical", True),
obj=f"{obj_type}.columns",
)
jsons = (left.dtypes == "json").index
for col in jsons:
custom_assert_series_equal(left[col], right[col], *args, **kwargs)
left = left.drop(columns=jsons)
right = right.drop(columns=jsons)
tm.assert_frame_equal(left, right, *args, **kwargs)
def test_custom_asserts():
# This would always trigger the KeyError from trying to put
# an array of equal-length UserDicts inside an ndarray.
data = JSONArray(
[
collections.UserDict({"a": 1}),
collections.UserDict({"b": 2}),
collections.UserDict({"c": 3}),
]
)
a = pd.Series(data)
custom_assert_series_equal(a, a)
custom_assert_frame_equal(a.to_frame(), a.to_frame())
b = pd.Series(data.take([0, 0, 1]))
msg = r"Series are different"
with pytest.raises(AssertionError, match=msg):
custom_assert_series_equal(a, b)
with pytest.raises(AssertionError, match=msg):
custom_assert_frame_equal(a.to_frame(), b.to_frame())